Automotive Technicians Technical Discussion and Fixes for Mar 17, 2011

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	Help Request	Answers
	2000 Audi A6 Quattro 2.7L n/a VIN: WWWZZZ6NZX i have this audi car with a JF4O4E jatco transmission can anyone provide me with the diagram of the band servo please this is my fax # [...]	View
	1993 BMW 740iL 4.0L Suspension VIN: WBAGD8327P "suspn leveling" warning on dash-comes on approx 5mins driving every time, car does not have asc+t, all data only shows fully hyraulic susnsion, this car only has hydraulic on the rear. I can set ride height from sensor on rear sway bar, and if weight applied ...	View
	2002 BMW 530i 3.0L Safety VIN: WBADT63442 Car Came in with brake light stays on all the time without braking& the steering colum moves up or down if you pull down either sunviser & slide the view mirror, no light at the sunviser mirror & the weird thing is the steering moves up . no codes all fuses ar...	View
	2002 Chevrolet Suburban 1500 LS 5.3L Voltmeter VIN: 3GNFK16Z52 Hey guys, Hope you can give me some input on this one,any and all welcome. The voltmeter is flickering esp. when load is created on charge system. Ckecked output-steady 14.2-14.4v amps ok as well. Charging tester reports no trouble with diodes. I believe these...	View
	2006 Chevrolet Cobalt LS 2.2L trans shifting VIN: 1G1AK15F76 ok guys this one is not playing right,what is going on is the trans acts like goes to neutral and bsti goes to clicking intermitantly,pulled codes and cleared and test drove,the further you go the lower the batt volts go on bcm display(provides B+ to bsti and ... Trouble codes: B1480 (batt.run down protect curcuit), B1517 (batt voltage out of range), U2106 (lost com.w/trans control system)	View
	2007 Chevrolet Express 2500 4.8L Poor Idle Quality, Cuts out VIN: 1GCG29YV57 hello, hope everyones day is going well? we have a 2007 chevy express 2500 with an interseting problem. the customer is concerned about it stalling in reverse and idling poorly ONLY when vehicle is hot. the transmission was rebuilt about 500 miles ago, but i... Trouble codes: P0171, P0218	View
	2000 Dodge Durango SLT 5.9L Fuel pump VIN: 1B4H528ZYF Has anyone seen this before. I thought is was a ground, but all ground are good.	View
	2001 Dodge Grand Caravan Sport 3.3L Cuts out, Misfire VIN: 1B4GP44311 Hope someone has an idea on this one. The transmission replaced with jasper rebuild. New crank sensor installed in bell housing. Inspected flywheel for cracks, did not remove though. Installed trans. van missing, and cutting out. Scanner shows no codes, howeve...	View
	2005 Dodge Ram 3500 SLT 5.9L Heater VIN: 3D7MS48C55 Hello once again fellow techs im in need of your expertese. after new heater core everything worked normal. in feb 2011 customer stated that heater tempt. dial when he put it on hot it would blow cold and when put on cold it would blow hot. we pulled dash out ...	View
	1995 Ford Ranger XLT 4.0L No Start VIN: 1FTCR14X0S No communication with PCM, tried two scanners, disconnected TPS DPFE MAF O2s, Trans, VSS still no data, tested powers, also grounds by voltage drop method. Tested all the pins on DLC ( OBD-II) = good Have 5 volt ref. with computer plugged in and cranking en...	View
	2002 Ford Focus ZTS 2.0L No Start, Stall VIN: 1FAFP38342 Replaced fuel pump on this vehicle on 3/13/11. For an inter. stall and no restart condition. They would let it sit for approx. 15 minutes and it would restart and run fine til the next time it would happen. There was no set conditions this would happen it woul...	View
	2002 Ford Mustang 3.8L Poor Idle Quality, Misfire VIN: 1FAFP40452 used car lot purchase. previously another shop put plugs wires. came to us with a pretty dead but intermittent miss. we put plugs in it, and it still had same problem so i pulled the coil wire # 4 and spark looked weak to me so i replaced it. miss kind of impr...	View
	2004 Ford F-150 XLT 4.6L No Start, Stall VIN: 1FTRX14W84 Hi fellow Ford Tech's. Thank you for reading my post and offering your time to help. I have a real fun one. This truck will start and run great until it warms up. Then it CAN die at will. Sometimes it will run for an hour and sometimes it will run for 5 minute... Trouble codes: P0351 (Ignition coil a primary/secondary circuit), P0352 (Ignition coil a primary/secondary circuit), P0353 (Ignition coil a primary/secondary circuit), P0354 (P0355 p0356 p0357 p0358 codes all present), P1000 (Obd systems readiness test not complete)	View
	2004 Ford Freestar 3.9L Surge, Cuts out, Stall, trans not shifting VIN: 2FMDA51674 Customer was driving and vehical shut off. tried to restart and no start. tow truck drive started and pulled it on and off the truck but it some times would have no foward or reverse.then day two all is ok but went to turn the key on and plug the scanner in ha... Trouble codes: P0715, P0717, U1039, P1502, P0340, P0401	View
	2006 Ford Focus ZX4 2.0L range sensor VIN: 1FAFP34N86 Code 705 keeps going after road test.Ohm test sensor on car seemed OK according to test info.Have no experience on Focus,s and have never experienced this code before. Any ideas or thoughts would be appreciated.Thanks in advance.	View
	1999 GMC Jimmy SLE 4.3L serpintine belt VIN: 1GKDT13W6X This vehicle has had what seems to be a belt squeal or bearing noise coming from the front of the engine for some time now. The customer has tried everything to eliminate this noise and now its wound up at my shop. He has had the idler pulley, tensioner pulley...	View
	2000 GMC Sonoma SL 2.2L abs VIN: 1GTCS1956Y Customer concern of air bag light coming on and off at times, abs/trac light coming on and off, abs light on steady most of the time and red brake light sometimes. Code U1041-loss of ebcm communication in pcm. When I can get in air bag module codes B1001-incor...	View
	2004 GMC Yukon SLE 5.3L MIL Lamp on VIN: 1GKEK13Z64 my scan tool show the sensors "off" and when hammer on block they show "on". I have a Snap on Verus and can not say I saw this on/off reply for the knock sensor. any help is appriecaited. I guese the sensors ae intermitt bad? Trouble codes: P0332	View
	1993 Honda Accord SE 2.2L No Start VIN: JHMCB7685P Hello fellow techs. This vehicle cranks and start normal when cold. idle is normal. If you let it idle for a couple of minutes and turn it off, it will not re-start. Has 35 psi fuel pressure,has spark and injector 12v positive and pulse signal but just cranks ... Trouble codes: 6 (coolant temp sensor)	View
	2005 Hyundai Tucson GL 2.0L Poor Fuel Economy VIN: KM8JM72D25 This vehicle had a p0305 code originally, we replaced ignition wires, performed carbon clean, checked plugs etc, erased code. Ran well since then, over a week, after sitting overnight, started to run rough, codes above showed up, all on same bank, we performed... Trouble codes: P0300, P0302, P0304, P0306	View
	1999 Jeep Grand Cherokee Laredo 4.0L No Start VIN: 1J4GW58S6X I am new at this and never requested help before... So here we go... This vehicle has been at several local shops ... Nobody else could figure this out and this is a great friend of mine and i am trying to help him... So as usual the money has run out because ...	View
	2003 Land Rover Range Rover HSE 4.4L Misfire, MIL Lamp on VIN: SALME11413 hello land rover techs, this is a used engine just installed. the problem were having is that the same codes are called up every time. p1300, p0301, p0306. replaced all plugs, the coils on #3 and #6 replaced. pcm sets pending codes during road testing however ... Trouble codes: P1300, P0301, P0306	View
	1999 Lexus RX300 3.0L Mechanical VIN: JT6HF10U5X No codes set transmission shifts fast and shudders while driving low speeds has reman trans twice and new speed sensors and two ECMS used same problem scoped sensor wave patterns good wiring check over no problems found	View
	2004 Lincoln LS 3.9L Oil Presure VIN: 1LNHM87A94 We had the vehicle driven in for some misfire issues , drove the vehicle 12 miles cam back started the vehicle several times while running test. When we went to check the injector driver the engine started and failed to have oil pressure (noise and oil light o...	View
	1997 Mercury Grand Marquis GS 4.6L No Start VIN: 2MELM74W6V Hello ford tech's i have an electrical problem on this vehicle and i will admit i have no patience for electrical problems my electrical tech is off for sick leave so i am stuck this vehicle was sitting running and died, would crank over but would not start cu...	View
	1990 Nissan 300ZX 3.0L crank shaft VIN: JN1RZ24A4L the tech changed the timing belt and tried to start this car and it just went clunk now the car is pulled back apart and we cannot get the engine to turn over by hand seems like a valve is stuck down all timing marks were lined up what might have gone wrong. k...	View
	2006 Nissan Maxima SE 3.5L data line VIN: 1N4BA41E16 Hi there I have an 06 maxima looking for a little guidance. Vehicle came in with a p1212, u1000, u1001 codes in ecm, u1000 in abs module, and u1000, p0717, p0722 in trans. Not to familiar with diagnosing comm codes. Looking at other posts I am supposed to have...	View
	1989 Oldsmobile Cutlass Ciera SL 3.3L Stall VIN: 2G3AM51N3K thanks in advance for any help on this problem. this car has intermittent stall,does not comunicate with snap-on solace but will flash code 12 when test pins at DLC are shoted, found injector pulse (driver side)both banks droping out at stall spark ok. found h...	View
	1991 Oldsmobile 98 Regency Elite 3.8L Pcm VIN: 1G3CW51C11 Hello I have a 90- olds 98 with a no start condition. have good spark, have good fuel pressure but no injector pulse. I have grounded the p/w wire at the ignition module and the injectors will pulse. I have tested the resistance from crank sensor to cam sensor...	View
	1999 Porsche 911 Carrera 3.4L MIL Lamp on VIN: WP0CA2997X I would appreciate any help or pointers i may be overlooking. The same codes are current after the client has driven the vehicle approx. 7 miles. P0410, p0411 secondary air injection system codes. Trouble codes: P0410 (Secondary air injection malfunction), P0411 (Secondary air injection)	View
	2001 Saab 9-3 2.0L timing chain VIN: YS3DF78K71 loud knocking/snapping sound at slow RPMs quiet at 1800 and up. sound coming from t-chain area. removed front cover-found balance shaft chain very loose. replaced tensioner shoes and idler sprocket-seems alot tighter but not sure where to align chain. mitchell...	View
	1998 Suzuki Sidekick JS Sport 1.8L Air Bag VIN: JS3TE21VXW Air bag light is on solid all the time, jumpered the connector under the drivers side of the dash does not flash, hooked up tech2 it is showing a B1061, checked power and grounds to sdm they are good, went through chart a and light on all the time chart comes ...	View
	1992 Toyota Pickup 2.4L No Start VIN: JT4RN93PXN engine turns over fine,fresh battery,starter sounds good,has no spark and code 24 is only code after i cleared codes.before had 12 13 24,.only code left is 24.can`t find IAT SENSOR.help!!..Is integrated w/maf? if so how can i test to make sure.don`t have pcm s... Trouble codes: 24 (iat sensor)	View
	2001 Toyota Tacoma DLX 3.4L Surge, Misfire VIN: 5TEHN72N31 This TRD supercharged Taco has been in our shop before. Ran very strong, 5-6 lbs boost, all stock. Customer somehow managed to break 2 rods and trash the engine. We install new Toyota short block, replaced several valves, had valve job performed on heads, reas... Trouble codes: P0300	View
	2005 Volkswagen Jetta 2.5 2.5L Windows, Door Ajar VIN: 3VWRF71K85 information center says the driver door is ajar and the door ajar dinger is driving the driver dingy. hooked up scan tool and found the codes 932 window motor wrong adaptation and 928 locking module for central locking wrong adaptation. Found that i cannot com...	View
	2005 Volkswagen Beetle GLS 2.0L Revers and drive VIN: 3VW5E1CA35 Car came in with delay 2-3 shift. Road tested and some times actually was slipping. Pulled pan found some clutch material and pulled trans. Rebuilt and also repaired valve body. Installed had no rev at first thought trans was low filled got rev but bangs from ...	View
	2009 Volkswagen Jetta TDI 2.0L Egr VIN: 3VWAL71K09 TDI techs, as described 2009 vw jetta tdi, customer comes in with check engine light, "code p0401" egr intermittent flow" vehicle does not show performance or driveability issues. I have worked on diesels for a long time but these newer obd2 diesels are beginn...	View
	1990 Volvo 240 DL 2.3L Poor Idle Quality VIN: YV1AA885XL when vehicle has been started cold, idle wont go below 1000rpm even after warm, and no codes in computer, i have to disconnect battery ,and after reconnecting battery it runs rough for 5 minutes than idles perfect and performes correctly but if you turn off ke...	View
	2005 Volvo S40 T5 2.5L wipers/signals VIN: YV1MH62562 Wipers come on low speed without notice and do not switch off. Simultaneously turn signals quit working. Have CEM-DE49 communication with SWM and SWM-0A10 and 11 communication codes. Scanner loses communication with SWM when problem occurs. Would you replace t...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2007 Audi Q7 4.2L Interior VIN: WA1BVP4L57 SENT TO DEALER VIA TOW TRUCK TO REPROGRAM HAD TO ALSO REPROGRAM ALL KEYS WHEN DONE. DEALER COST WAS $240.00 DEALER INFORMED ME THAT IF ALL KEYS ARE NOT REPROGRAMED THAT WRONG KEY WOULD SHUT YOU OUT AND HAVE TO BE REPROGRAMED	8
	2004 Cadillac CTS 3.6L Battery VIN: 1G6DM57714 TRYED A ANTENA MODULE IT DID NOT WORK. SENT OUT TO DEALER AND THAY SAID IT WAS THE DASH BCM. I REPLACED IT AND RECHECKED. STILL A 2.5A DRAW. THE CUSTOMER TOOK IT TO A CADDY DEALER AND THAY HAD IT FOR 2 DAYS AND NO DRAW THE WOLE TIME. IT MUST HAVE HIT THE RIGHT...	7
	2007 Cadillac CTS 3.6L Hesitation, Surge, Misfire VIN: 1G6DP57757 Thanks to all who replied. We tried the injector flush with BG going into the fuel line at the filter with pump disabled. We were still seeing the same problem. We replace the crankshaft position sensor and the problem appeas to have gone away. Customer is...	8
	2000 Checker montecarlo 3.8L ac VIN: 2G1WX12K6Y well thanks to every one tha help me on this one, i finaly find the problem it was a wire tha aperanly hat to hot and melted,from the pcm to the relay, i dont know what cosit is fix maybe thay run the ac like allday o somting dontknow, thanks for you help.	3
	1991 Chevrolet Camaro Z28 5.0L Cuts out VIN: 1G1FP33F2M After installing a injector cleaning device which took the auto 's fuel system out of rhe picture, it did not change.after noticing the spark light stayed on even as the engine died,we saw the injector node light weaken as the engine died.we took a ohm readin... Trouble codes: 45 (Rich condiion), 32 (No egr flow).	25
	1998 Chevrolet K1500 Silverado 5.7L Brake lights VIN: 1GCEK19R7W If you folllow the wire harness from the brake light switch up above the bracket that holds the steering coloumn there is a connector on the harness found partially broken wires going to the switch at that connector,hard to see and hard to get at, when you ste...	23
	2000 Chevrolet S10 2.2L engine temp VIN: 1GCCS1941Y thanks for the help, info was very good, the customer called me back and said that it was working great now. must have been something with the heater core. before i rehooked up the heater hoses i blew air both directions through the core, then hooked hoses bac...	10
	2001 Chevrolet Venture LS 3.4L Window VIN: 1GNDX03E11 First a big thanks to all for replying. The fix was the main switch in the drivers door. It just seems odd that I could control the passengers window from the drivers door but not the passengers door, which you would think uses the same ground in the main swit...	11
	2002 GMC Envoy SLE 4.2L hard to start warm VIN: 1GKDS13S42 thanks to all the information all of yall shared with me. it ended up being the throttle body. i dont know what inside was actually causing the problem. i had a friend that also had this problem and i took a shot in the dark on replacing it but that was the fi...	7
	2003 Hyundai Sonata 2.4L Tempature Guage VIN: KMHWF35H93 Thanks to Everyone that replied, it was a ground issue. I followed Richards idea and ran another ground from battery to engine block.	7
	2003 Hyundai Elantra GLS 2.0L MIL Lamp on VIN: KMHDN45D13 Alldata has a test for the vehicle to check a ground points at the ground strap on transmission and alternator (VLTAGE DROP) . I cleaned mating alternator surfaces and both ground strap ends,apparently this technic did the trick. Trouble codes: P0133.	3
	2000 Lexus RX300 3.0L MIL Lamp on VIN: JT6HF10U3Y Fixed finally thanks for all the help the problem was intermittent and it turned out to be a bad connector for the ocv valve bank one looks like the pin was not making good contact and when the vevicle was running and hot it was shuting the valve on and off,ve... Trouble codes: P1656 (OCV Circuit Bank 1).	6
	1990 Mazda MPV Passenger 2.6L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: JM3LV5213L Thanks to Tony [...], and A. Frankin for the responses. I did ground the single green lead but the cel still didn't flash, just stayed steady. I was able to repair the vehicle. It wound up being corroded terminals on the MAF sensor which I cleaned...	4
	1998 Mercedes-Benz S320 LWB 3.2L Turn Signals, Wipers,Sunroof,Windows, VIN: WDBGA32G7W THANKS EVERYONE FOR THE INFO. I FOUND THE IGNITION SWITCH TO BE INTERNALLY FAULTY UNDER ELECTRICAL LOAD. REPLACED ELECTRICAL PORTION OF IGNITION SWITCH AND ALL THE IN-OP FEATURES NOW WORK.INITALLY TESTED POWER FEED CIRCUIT WITH NO LOAD APPLIED AND BATTERY VOLT...	3
	2004 Mitsubishi Lancer Evolution 2.0L No Start VIN: JA3AH36D34 Thanks for all the help, we have a Modis and it showed the vehcile did not have any codes. The key does have to be programmed to the new ECM so off to the dealer and this one is finally fixed, I am not sure why the dealer we bought the ECM from did not know th...	6
	2004 Nissan Titan SE 5.6L Cuts out, MIL Lamp on VIN: 1N6AA07B84 Thank you for all the replies, The owner is deciding if he wants to fix it. By the replies I told him we should put in a different motor. The spec in Alldata is .004 inches warpage on the heads, my guess is that they were cut .012 to .016!!! I will repost if... Trouble codes: P0335.	10
	2007 Nissan Frontier SE 4.0L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 1N6AD07W97 I guess you had to be here to hear the noise. The engine noise was the clogged cat on the one bank causing the IMRC to vibrate. We got the new front cat in and discovered after disassembly that the front cat is gone with the remains clogging up the rear cat.... Trouble codes: P0300 (Random missfire).	9
	2007 Saturn Vue 2.2L Hesitation, Stall VIN: 5GZCZ33D17 On the second day of testing we did get a VSS code and none of the others returned. We went with the symptoms we had, which was no speed signal from control modules intermittently. We were getting an A/C signal at the VSS so started tracing up to the trans con... Trouble codes: P1574 (Brake Switch problem), P3905 (undocumented), P2039 (undocumented).	3
	2005 Toyota Camry XLE 3.0L MIL Lamp on VIN: 4T1BF30K95 Thanks to everyone who replied! After reading the replies I became convinced that we have to start from the procedure suggested by our local dealer and the TSB mentioned in a few replies. So we did and the remedy - two updated A/F sensors plus PCM reprogram -... Trouble codes: P0051 (A/F Sensor B2S1 Heater Control Circuit Low), P2241 (A/F Sensor B2S1 Pumping Current Circuit Low), C1201 (Engine Control System Malfunction).	16
	2006 Volkswagen Jetta GLI 2.0L Hesitation, MIL Lamp on VIN: 3VWWJ71K56 After rechecking intercooler hoses, waste gate solenoid, recirculation valve. I removed the front O2 sensor & did a back pressure test, 4 psi @ 2,000 RPM'S. Removed the Cat. pipe, found there was a tan carbon coating on the honeycomb material of the Cat. most ... Trouble codes: P0299 (Boost Pressure control range not reached).	4

(Also Available: All, Asian, Chrysler, European, Ford, GM.)